Answer :

Given,


Need to simplify by rationalizing denominator


To rationalize the denominator of we must multiply the number with its denominator as follows


×


=


we know that numerator is in the form of (a+b)2 = a2+2ab+b2


we know the denominator is in the form of a2–b2 = (a+b)(a–b)


=


=


=


=


Hence, is simplified by rationalizing denominator as


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